PHP WebSocket是一个简单的 WebSocket服务器的PHP实现，遵循WebSocket RFC的draft75和draft76规范。支持Flash Socket Policy请求。整个服务器采用模块化设计，非常易于扩展。
服务器实现：

class EchoApplication extends Application  {      private $clients = array();        public function onConnect($client)      {          $this->clients[] = $client;      }        public function onDisconnect($client)      {          $key = array_search($client, $this->clients);          if ($key) {              unset($this->clients[$key]);          }      }        public function onData($data, $client)      {          foreach ($this->clients as $sendto) {              $sendto->send($data);          }      }  }

客户端代码示例：

var server = new WebPush('ws://localhost:8000/echo');    server.bind('open', function() {      // Connection openend...      server.send("Hello, I'm there!");  });    server.bind('close', function() {      // Connection closed...   });    server.bind('message', function(data) {      // Data received  }); 

项目主页：http://www.open-open.com/lib/view/home/1338512482339